Ullmark will patrol the home crease in Saturday's preseason game against Montreal, per Bruce Garrioch of Postmedia.
Ullmark posted a 28-12-8 record with three shutouts, a 2.73 GAA and an .891 save percentage in 49 regular-season appearances for Ottawa in 2025-26. He will likely receive the bulk of the starts for the Senators again during the 2026-27 campaign.